; total time: 0.17
; plan length: 18
(fly plane1 city2 city0 fl1 fl0)
(board person4 plane2 city1)
(board person6 plane1 city0)
(refuel plane1 city0 fl0 fl1)
(fly plane1 city0 city2 fl1 fl0)
(debark person6 plane1 city2)
(refuel plane1 city2 fl0 fl1)
(fly plane1 city2 city3 fl1 fl0)
(board person1 plane1 city3)
(board person5 plane1 city3)
(refuel plane1 city3 fl0 fl1)
(fly plane1 city3 city2 fl1 fl0)
(debark person1 plane1 city2)
(debark person5 plane1 city2)
(refuel plane2 city1 fl1 fl2)
(fly plane2 city1 city3 fl2 fl1)
(debark person4 plane2 city3)
(fly plane2 city3 city1 fl1 fl0)
